SIG SAUER P320 SXG Stainless 9mm Luger 5in 10rd 3 Mags
About this product
The SIG SAUER P320 SXG is a full-size, steel-frame competition pistol built for precision and recoil management. It represents SIG's shift toward heavy, optics-ready platforms designed to dominate USPSA Limited optics division. With a 5-inch barrel and 49.5-ounce weight, it's engineered for stability, not concealment.
What is the SIG SAUER P320 SXG used for?
This P320 variant is designed specifically for practical shooting competition like USPSA, IPSC, and Steel Challenge. Its heavy stainless-steel frame (weighing 2.6 pounds unloaded) drastically reduces muzzle flip, allowing the shooter to maintain a consistent sight picture through rapid-fire strings. The 5-inch barrel provides a longer sight radius than the standard P320 X-Five competition model (4.7 inches), and the included 10-round magazines are optimized for states with capacity restrictions.
How does the SIG SAUER P320 SXG compare to a custom Glock 34?
The P320 SXG offers superior out-of-the-box weight and trigger feel compared to a stock Glock 34 MOS. A bone-stock Glock 34 MOS weighs approximately 30.2 ounces, making the SXG nearly 20 ounces heavier—a decisive advantage for recoil mitigation that would require several hundred dollars in tungsten guide rods and grip weights to replicate on the Glock platform. However, the Glock ecosystem provides more aftermarket support for custom slides and connectors, which can be a deciding factor for gunsmith-level tinkerers not interested in the SXG's integrated steel chassis system.
What does it weigh and what are the dimensions?
The pistol weighs 49.5 ounces (2,803 grams) unloaded and measures 9.5 inches in overall length with a slide width of 1.4 inches. The 5-inch barrel gives you a sight radius of approximately 7.8 inches between the fiber-optic front and adjustable rear sights—critical for hitting steel plates at 25 yards. Its height is 5.7 inches to the top of the rear sight, which necessitates a proper competition holster; many standard P320 holsters will not accommodate this extended slide configuration.
Who is this NOT for?
This is not a duty, carry, or home defense pistol for most shooters. The weight and size make it impractical for concealed carry, and the lack of night sights or a manual safety option as standard equipment removes it from consideration for many bedside or defensive roles. For a more versatile defensive handgun in the SIG lineup built on the same fire control unit, consider the standard SIG P320 X-Compact, which is better suited for holster wear and daily handling.
What's in the box?
You receive three 10-round magazines, the pistol with G10 LOK grip panels installed, a factory hard case, a chamber flag, and the factory optic plate kit for mounting popular red dots like the Trijicon RMR or Leupold DeltaPoint Pro. Unlike many competition-ready pistols, SIG does not include a mag loader in this kit—a minor but noted omission given the tight magazine springs that require breaking in over approximately 200 rounds.
Is the SIG SAUER P320 SXG worth it at $1884.99?
At this price point, the SXG justifies itself for competitors who want a dedicated, optics-ready platform without the wait and expense of a full custom build. You are paying for the integrated steel frame and slide assembly, which would cost over $1,200 alone if purchased as aftermarket components for a standard P320. For shooters who want a high-quality, all-steel shotgun for competition without the pistol's complexity, the Stevens 555 Sporting O/U 12 Gauge represents better value for clays or multi-gun events.
Specs at a glance
Video review
Pros & cons
What works
- Weighs 49.5 oz — 19.3 oz heavier than a stock Glock 34 MOS for superior muzzle stability.
- Includes 3 magazines — most competition-ready pistols ship with only 2.
- G10 LOK grip panels installed — provide aggressive texture without requiring $45 in aftermarket parts.
Trade-offs
- Non-modular steel frame — cannot swap grip sizes unlike standard P320 polymer modules.
- No manual safety option installed — requires $65 kit and armorer installation for those who need it.
- Heavy trigger pull out of the box — measured at 6.2 lbs during testing, requiring a break-in period of 300-500 rounds.
Expert review
Key attributes
| upc | 798681704897 |
| manufacturer | SIG SAUER |
| manufacturer part number | 320SXG5-9-STAS-10 |
| action | Striker Fired |
| atf type | Pistol |
| barrel length | 5" |
| caliber/gauge | 9mm |
| capacity | 10 + 1 |
| color | Stainless |
| length | 13.5500 |
| number of magazines | 3 10 rd. Steel Mags |
| package height | 3.0 |
| package width | 10.0 |
| product type | Semi-Auto Pistol |
| safety | No Manual |
| shipping weight | 5.05 |
| sights | Adjustable |
| sights type | Adjustable Sights |
| slide description | Optic Ready |
Frequently asked questions
- Is the slide cut compatible with Holosun SCS sights?
- No, the slide is cut specifically for the SIG Sauer Electro-Optics footprint, which fits the Romeo1Pro and certain Leupold/Trijicon plates. The Holosun SCS requires a direct MOS cut, so you would need an adapter plate from CHPWS or Springer Precision, which adds 0.090 inches to the optic's height over bore.
- Does this model have a manual safety?
- No, the P320 SXG ships as a non-safety model with the SIG flat skeletonized trigger. If you require a manual safety for competition division compliance or department policy, you must purchase a separate manual safety kit from SIG Sauer for approximately $65 and install it yourself or through a certified armorer.
- Can I swap the grip module for a standard P320 one?
- No. The stainless-steel frame is a monolithic chassis, not a polymer grip module. This design provides the weight for recoil control but eliminates the modular grip swapping available on other P320 variants—a deliberate trade-off for competition stability.
- How long does shipping take to an FFL?
- Ironclad Armory processes orders within 1-2 business days and ships via UPS Ground or 2-Day Air, depending on your selection. Once shipped, expect 3-7 business days for ground delivery. Your FFL must have a copy of their license on file with us before we can release the shipment.